From the above command class code, we can see that any operation has an execute method to perform the operation. The above code uses traditional object-oriented programming to implement the command mode. The procedural request call of the command mode is encapsulated in the execute method of the command object. Have we found the above writing code a little cumbersome? We can do this using the callback functions in javascript, In object-oriented, The receiver of the command mode is saved as an attribute of the command object, and the command execution operation is agreed to call the command.execute method. However, if we use the callback function, then the receiver is closed in the environment where the callback function is generated, and the execution operation will be simpler. Only the callback function can be executed. Let's look at the following code:
长帆还没走，我怎么走？儿孙自有儿孙福，走吧。
只是，这到底是白虎侯襄助的呢，还是玄武将军又重披战袍、北上协助兄长呢？白虎侯正与那日松周旋，刘水胜等将领各自固守一城，且西疆还有其他小国也不安分，西边应该无人去助玄武公。
真的没事？就在这时，玄武王府来人，说要见小葱。
行动日子逐渐逼近，面对生化武器与人命，情与义，多特面临有生以来最严竣的考验……
As can be seen from the figure, the whole process is divided into 4 situations. The following will analyze these 4 situations in detail through practice, including why they are divided like this and how to classify and exclude other more situations.
活泼开朗的高中女生小石川光希突然得知父母要离婚的消息，他们双双出轨，和另一对夫妻谈恋爱，而且两家还住在了同一个屋檐下，对方家中有一个与光希同年的儿子松浦游，智商超高运动全能，光希不知不觉间喜欢上了他。
丁柠是一个母胎单身，直到她遇到了萧烨。命中注定的相遇，也带来了不平凡的浩劫……时间一直停留在了他们相遇的那一天，这也恰巧给了丁柠去了解和“攻略”萧烨的机会，直到时间的循环打破。
"No one in position 149 was completely unstung, I am no exception, He got several times during the fight, But I'm lucky, None of them stung the key parts, Two big flying wasps stung me in this area of my chest. Luckily there was a bullet bag hanging on it, The bullet bag was stuffed with four shuttles (note: the shuttle here refers to the magazine of an automatic rifle). Four shuttles covered the whole chest, So it blocked the two poison needles directly, No matter how severe the poison needle is, of course it cannot penetrate the shuttle. Just pierced the canvas on the bullet bag, It was hung on it, but although it could not be tied through the shuttle, it could still pass through the slightly thinner metal, because I had been hit several times in my head. When the battle was completely over, I had five poisonous needles on my head, each of which was the front tip already stuck in and the back half was exposed. I was wearing a helmet at that time! Even helmets can be tied up. No wonder several comrades with cloth hats have their skulls nailed through.
张正英自知这是一段没有结果的感情，便怂恿蒲地流与同村的刘家女儿翠翠相好，蒲地流与刘翠翠果然一见钟情，便私定了终身。就在蒲地流去县城读书受训的时候，刘翠翠为抗拒父母媒约，新婚之夜上吊自尽，匆匆赶回来的蒲地流只看到了一抔土坟，而就在蒲地流坟前伤心之时，竟意外救下了一名被土匪追赶的红军干部，蒲地流第一次知道中国有一支为穷苦百姓打天下而英勇奋战的军队叫红军。
朝堂再次一片哗然。
Next, we can use the policy mode to refactor the form validation.
Xinjiang Uygur Autonomous Region
在20世纪90年代的土耳其，一群十几岁的弃儿组成了乐队，让他们深爱的老师坠入爱河，这样她就有理由和他们呆在一起了。
QQ Flying Car-Baidu Encyclopedia
森绘都本屋大赏年度第2作品<三日月>将拍摄日剧，永作博美&高桥一生共演，通过一个家族的50年历史，观察日本补习班的变迁。工藤阿須加、大政絢、壇蜜、黒川芽以、風吹纯加盟，2019年1月NHK放送。
过目不忘的高俊与特异功能的好友周星星，将异能用在赌博上，误打误撞下结识了南中国雀神达叔。二人得达叔指教赌术，横扫地下赌场。二人后来参加赌王大赛，并杀入决赛，但有人暗中捉走俊的嫲嫲作要胁，令这场世纪之战峰迥路转……
Per single damage = (Bleeding damage/2) * [1 + (strength + intelligence)/500] * Abnormal damage reduction]/Bleeding duration
李倩蓓是新当选的香港小姐，天真善良的她拥有天使般的美貌，星途一片无量。一次偶然之中，李倩蓓结识了名为梁子威的男子，郎才女貌的两人之间很快就产生了真挚的感情。然而，梁子威系有妇之夫，他的妻子一直在利用娘家的权势操纵控制着丈夫。得知这一切的李倩蓓决定离开梁子威，成全他的婚姻。一场意外中，李倩蓓被卷入了一场凶杀案之中，站在了法庭之上，为了证明李倩蓓的清白，梁子威不惜曝光了两人之间的隐情，也要救爱人于水火之中。见证了两人之间轰轰烈烈的感情，梁子威的妻子决定同丈夫离婚，并带走了所有的财产。
在阴森恐怖令人谈之色变的幽灵森林深处，耸立着一幢巍峨庄严的古堡。这里的主人正是声名显赫的吸血鬼德古拉。与传说中不同，德古拉是一个无比温柔的好爸爸，他独自抚养爱女梅菲丝，为了保护女儿免遭人类的戕害，而特意修建了这座名为尖叫旅社的城堡，普通人类绝对无法接近这里。每年梅菲丝生日之际，科学怪人、狼人、木乃伊、隐形人等怪物都从世界各地赶来为小女孩庆生。在梅菲丝118岁生日之际，她渴望见识外面的世界，早有准备的德古拉设下骗局，却意外将人类少年乔纳森引入古堡......
